Screen Play by Frederick Knott – based on his play
42:42 Closeup of the phone – MN6
13:20 Looking at the photo of the college reunion – “What a murderous thug I look” says Swan.
16:30 “I thought of 3 different ways of killing him. I even thought of killing her and that seemed a far more sensible idea.” – Tony to Swan
27:15 – 33:00 Tony tells Swan how to murder Margot – then Swan picks up the money indicating he will do the murder for him.
34:00 Tony – “Yes what about it Mark, can you provide me with the perfect murder?” Margot to Mark – “Do you really believe in the perfect murder?”
1:47 “Mark Halliday is arriving” – we see the Times newspaper – then we see him kissing Margo – “Mark before Tony comes” says Margot.
3:45 Mark – “I suppose that’s when you stopped writing letters. Margot is it?”